Disable SDCH by Default

ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IMPL_IO_DATA_H_
 #define IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IMPL_IO_DATA_H_
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "components/prefs/pref_store.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state_io_data.h"
 #include "ios/chrome/browser/net/net_types.h"
 
 class JsonPrefStore;
 
 namespace ios {
 class ChromeBrowserState;
 }
 
 namespace net {
 class CookieStore;
 class HttpNetworkSession;
 class HttpServerPropertiesManager;
 class HttpTransactionFactory;
-class SdchManager;
-class SdchOwner;
 }  // namespace net
 
 class ChromeBrowserStateImplIOData : public ChromeBrowserStateIOData {
  public:
   class Handle {
    public:
     explicit Handle(ios::ChromeBrowserState* browser_state);
     ~Handle();
 
     // Init() must be called before ~Handle(). It records most of the
@@ skipping 102 matching lines @@
   mutable std::unique_ptr<net::HttpTransactionFactory> main_http_factory_;
 
   // Same as |ChromeBrowserState::http_server_properties_|, owned there to
   // maintain destruction ordering.
   mutable net::HttpServerPropertiesManager* http_server_properties_manager_;
 
   mutable std::unique_ptr<net::CookieStore> main_cookie_store_;
 
   mutable std::unique_ptr<net::URLRequestJobFactory> main_job_factory_;
 
-  mutable std::unique_ptr<net::SdchManager> sdch_manager_;
-  mutable std::unique_ptr<net::SdchOwner> sdch_policy_;
-
   // Parameters needed for isolated apps.
   base::FilePath profile_path_;
   int app_cache_max_size_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserStateImplIOData);
 };
 
 #endif  // IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IMPL_IO_DATA_H_